Influence of Ethylene Plasma Treatment of Agave Fiber on the Cellular Morphology and Compressive Properties of Low-Density Polyethylene/Ethylene Vinyl Acetate Copolymer/Agave Fiber Composite Foams

Agave fibers (AF) were incorporated either pristine (AFp) or surface treated by ethylene plasma (AFm) in low-density polyethylene (LDPE)/ethylene vinyl acetate (EVA) blends at a ratio of 1 : and foamed chemical means. The role the AF content (3, 6, 9, 12, 15 wt.%) its modification on cellular morphology mechanical properties LDPE/EVA/AF foams under compression is investigated herein. Fourier transform-infrared spectroscopy, contact angle, water suspension suggest that treatment using successfully modifies nature from hydrophilic to hydrophobic. have an important morphological foams. Composite reinforced with 12 wt.% AFm exhibited highest improvements. At this fiber content, composite enhanced 30% compressive modulus 23% energy absorption respect neat polymer blend foam, as result formation more uniform cells smaller size enhancement compatibility spatial distribution due thin clusters polyethylene-like deposited surface.